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Re: Impulse


Impulse is a push for a while. I can stop a speeding Mac truck two
ways.
Push it hard for a little while or push it easy for a long while.

What about using the term impulse to describe a large but exceptionally
brief
force? Is this a well defined concept?

Justin Parke

Sure it is. Unfortunately automobiles are often stopped by large brief
forces administered by things like large trees. Dashboards used to be bare
metal. They typically exerted forces over a shorter time period and
therefore require a larger force to change the momentum of the occupant.
Since we now cover dashes with foam rubber the time that dashboards are in
contact applying forces to the occupant has increased this allows a smaller
force to change the momentum of the occupant.

Cliff Parker

--Boundary_(ID_fbp+0qTbVgZCOj1lhsIjuQ)
Content-type: text/html; charset=US-ASCII
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<HTML><FONT FACE=arial,helvetica><FONT SIZE=3 FAMILY="SERIF" FACE="Times
New Roman" LANG="0">In a message dated 10/30/2001 5:00:18 PM Eastern
Standard Time, cparker@CHARTER.NET writes:
<BR>
<BR></FONT><FONT COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial"
LANG="0">
<BR><BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid;
MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Impulse is a push
for a while. &nbsp;I can stop a speeding Mac truck two ways.
<BR>Push it hard for a little while or push it easy for a long
while.</FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial"
LANG="0"></BLOCKQUOTE>
<BR></FONT><FONT COLOR="#000000" SIZE=3 FAMILY="SERIF" FACE="Times New
Roman" LANG="0">
<BR>What about using the term impulse to describe a large but
exceptionally brief force? &nbsp;Is this a well defined concept?
<BR>
<BR>Justin Parke</FONT></HTML>

--Boundary_(ID_fbp+0qTbVgZCOj1lhsIjuQ)--